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Updated: Mar 18, 2026

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
Published on: August 18, 2020
Cannabis Use in Psychiatrie Patients.
S Chaudhury1, S Sudarsanan2, S K Salujha3
1Classified Specialist (Psychiatry), Command Hospital (Western Command), Chandimandir.
Cannabis use is linked to psychiatric disorders, with many patients reporting early initiation and dependence. Reasons for use include curiosity, peer pressure, and traditional practices.
Area of Science:
- Psychiatry
- Addiction Medicine
- Neuroscience
Background:
- Cannabis abuse is a recognized factor associated with the development and exacerbation of psychiatric disorders.
- Understanding the patterns of cannabis use is crucial for psychiatric patient care.
Purpose of the Study:
- To investigate the patterns of cannabis use among psychiatric patients.
- To determine the incidence of cannabis dependence and psychosis in this population.
Main Methods:
- A study of 471 consecutive patients admitted to a tertiary care psychiatric center.
- Assessment of cannabis use patterns, dependence criteria, and psychosis symptoms.
Main Results:
- 14.23% of patients reported cannabis use; 8.92% were occasional users, 3.82% frequent users, and 1.49% met criteria for cannabis dependence.
- 0.64% of patients exhibited symptoms of cannabis psychosis.
- The majority (83.58%) of cannabis users initiated use between 13-19 years of age.
Conclusions:
- Cannabis use is prevalent in psychiatric settings, often starting in adolescence.
- Curiosity, peer pressure, and traditional use are key motivators for cannabis consumption in this group.
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